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  1. <?php
  2. 	$text = "left right\r\nbottom";
  3.     function clean($text) {
  4.     	$text = addcslashes($text, "\x20\t");
  5.     	$text = preg_replace('/[^\S\n]+/', ' ', $text);
  6.     	$text = stripslashes($text);
  7.     	return  preg_replace('/[^\S\n]+/', ' ', $text);
  8.     }
  9.     var_dump(json_encode($text));
  10.     $text = clean($text);
  11.     var_dump(json_encode($text));
  12.  
Success #stdin #stdout 0.02s 52480KB
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stdin
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Standard input is empty
stdout
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string(22) ""left right\r\nbottom""
string(21) ""left right \nbottom""
https://ideone.com/ebP1Q4
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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